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Fig. 72. Drain hole
REMOVAL OF SCALE
FROM COOLING SYSTEM
The scale from the cooling system delete by a solution technical
thrylone (TU 6-01-634-71) in a water of concentration 20 g/l. Thrylone
- the powder of white colour, is not poisonous, is easily dissolved in a
water, does not cause foaming of a water at its heating and boiling.
Fill the cooling system with the solution of thrylone. After one
day of engine run (not less than 6-7 h) merge a spent solution and fill
the system with fresh one. Continue the washing during four-five days.
After the washing ending fill the cooling system with water containing
2 g/l of thrylone. If thrylone is absent, the scale from cooling system
delete with the solution consisting of calcium (washing) soda in quan-
tity 0,5 kg and 1,0 kg of kerosene on 10 l of water. Fill the cooling
system with that solution for 24 hours, from which the engine not less
than 8 hours should run on an operational mode then merge the solu-
tion while the engine is hot, and after it cooling wash the cooling sys-
tem with clean water.
Содержание ???-238??
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